diff --git a/esprima.js b/esprima.js
index 1a0f5e5ef..9e70845e0 100644
--- a/esprima.js
+++ b/esprima.js
@@ -2280,7 +2280,7 @@
 
         finishYieldExpression: function (argument, delegate) {
             this.type = Syntax.YieldExpression;
-            this.arguments = argument;
+            this.argument = argument;
             this.delegate = delegate;
             this.finish();
             return this;
diff --git a/test/fixtures/ES6/generator/generator-binding-property.tree.json b/test/fixtures/ES6/generator/generator-binding-property.tree.json
index d142a2b06..0e28d11c9 100644
--- a/test/fixtures/ES6/generator/generator-binding-property.tree.json
+++ b/test/fixtures/ES6/generator/generator-binding-property.tree.json
@@ -221,7 +221,7 @@
                                                             }
                                                         },
                                                         "type": "YieldExpression",
-                                                        "arguments": {
+                                                        "argument": {
                                                             "range": [
                                                                 38,
                                                                 39
@@ -278,4 +278,4 @@
             }
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/ES6/generator/generator-declaration-with-yield-delegate.tree.json b/test/fixtures/ES6/generator/generator-declaration-with-yield-delegate.tree.json
index d3686b2a5..857748007 100644
--- a/test/fixtures/ES6/generator/generator-declaration-with-yield-delegate.tree.json
+++ b/test/fixtures/ES6/generator/generator-declaration-with-yield-delegate.tree.json
@@ -100,7 +100,7 @@
                                 }
                             },
                             "type": "YieldExpression",
-                            "arguments": {
+                            "argument": {
                                 "range": [
                                     25,
                                     26
@@ -128,4 +128,4 @@
             "expression": false
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/ES6/generator/generator-declaration-with-yield.tree.json b/test/fixtures/ES6/generator/generator-declaration-with-yield.tree.json
index a32f6d019..09712edc6 100644
--- a/test/fixtures/ES6/generator/generator-declaration-with-yield.tree.json
+++ b/test/fixtures/ES6/generator/generator-declaration-with-yield.tree.json
@@ -100,7 +100,7 @@
                                 }
                             },
                             "type": "YieldExpression",
-                            "arguments": {
+                            "argument": {
                                 "range": [
                                     24,
                                     25
@@ -128,4 +128,4 @@
             "expression": false
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/ES6/generator/generator-expression-with-yield-delegate.tree.json b/test/fixtures/ES6/generator/generator-expression-with-yield-delegate.tree.json
index a5b7e63fe..7a92b9f27 100644
--- a/test/fixtures/ES6/generator/generator-expression-with-yield-delegate.tree.json
+++ b/test/fixtures/ES6/generator/generator-expression-with-yield-delegate.tree.json
@@ -154,7 +154,7 @@
                                     }
                                 },
                                 "type": "YieldExpression",
-                                "arguments": {
+                                "argument": {
                                     "range": [
                                         29,
                                         30
@@ -182,4 +182,4 @@
             }
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/ES6/generator/generator-expression-with-yield.tree.json b/test/fixtures/ES6/generator/generator-expression-with-yield.tree.json
index f1ddfb6fb..000f3f395 100644
--- a/test/fixtures/ES6/generator/generator-expression-with-yield.tree.json
+++ b/test/fixtures/ES6/generator/generator-expression-with-yield.tree.json
@@ -99,7 +99,7 @@
                                     }
                                 },
                                 "type": "YieldExpression",
-                                "arguments": {
+                                "argument": {
                                     "range": [
                                         21,
                                         22
@@ -128,4 +128,4 @@
             }
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/ES6/generator/generator-method-with-yield-delegate.tree.json b/test/fixtures/ES6/generator/generator-method-with-yield-delegate.tree.json
index 5e38778d1..6c1d606a8 100644
--- a/test/fixtures/ES6/generator/generator-method-with-yield-delegate.tree.json
+++ b/test/fixtures/ES6/generator/generator-method-with-yield-delegate.tree.json
@@ -151,7 +151,7 @@
                                                 }
                                             },
                                             "type": "YieldExpression",
-                                            "arguments": {
+                                            "argument": {
                                                 "range": [
                                                     19,
                                                     20
@@ -186,4 +186,4 @@
             }
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/test/fixtures/ES6/generator/generator-method-with-yield-expression.tree.json b/test/fixtures/ES6/generator/generator-method-with-yield-expression.tree.json
index 7718ddd48..9591cb293 100644
--- a/test/fixtures/ES6/generator/generator-method-with-yield-expression.tree.json
+++ b/test/fixtures/ES6/generator/generator-method-with-yield-expression.tree.json
@@ -151,7 +151,7 @@
                                                 }
                                             },
                                             "type": "YieldExpression",
-                                            "arguments": {
+                                            "argument": {
                                                 "range": [
                                                     18,
                                                     19
@@ -186,4 +186,4 @@
             }
         }
     ]
-}
\ No newline at end of file
+}